Questions on using BRIDGE in MS-DOS · Theldus/bread · Discussion #5

srmeister
May 6, 2026

so i read the README but still have some questions:

I read that the beginning of the dbg.com is filled with NOPs... Does it mean when i use it to debug a DOS application, it must be smaller than the free space provided by these NOPs?
Wouldnt it be nice to have a TSR version which can be loaded lets say in config sys or autoexec.bat, which would be the smallest size possible, in order to allow execution of larger programs, like games, that need a few hundret kbs RAM?
Does this code run on a 286 machine?

thx in advance for any advise!

Hi @srmeister,
Great questions,

Yes, thats right. The idea is to keep BREAD in MS-DOS memory so these NOPs are for the future programs that will be loaded.
Oh, thats a neat idea!, I haven't tested, but I also don't see why it would not work either, worth a try.
Sadly no, there are several things unique to 386+, such as 32-bit registers eax, ebx, ecx, edx, the use of debug registers DR0 to DR7, and etc, to name a few. Supporting 286 would require some code rewrite.

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